I have three bows set up for bowfishing; a recurve and two compounds. The recurve I shoot off the shelf, and also one of the compounds (it's older, with a riser that's not cutout like more modern compounds). The other compound I have has a Fishhook rest on it. I like it alot. It's inexpensive, simple and made of tough plastic. That's a good one.

There's others out there, but this is what I use, and I like it.